IPv4 R&E Routing Table Report 23:05 GMT Sun 06 Jul, 2025 IPv4 BGP Table (Global) as seen at Singapore. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Singapore/ Analysis Summary ---------------- BGP routing table entries examined: 985932 Prefixes after maximum aggregation (per Origin AS): 381782 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 485654 Number of IPv4 prefixes with a valid ROA: 552959 Number of IPv4 prefixes with an invalid ROA: 768 Number of IPv4 prefixes with no ROA: 432193 Total ASes present in the Internet Routing Table: 76814 Prefixes per ASN: 12.84 Origin-only ASes present in the Internet Routing Table: 65828 Origin ASes announcing only one prefix: 26867 Transit ASes present in the Internet Routing Table: 10986 Transit-only ASes present in the Internet Routing Table: 535 Paths with bogon ASNs present in the IPv4 Routing Table: 33 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 79 Max AS path prepend of ASN ( 37447) 75 Prefixes from unregistered ASNs in the Routing Table: 1157 Number of instances of unregistered ASNs: 1196 Number of 32-bit ASNs allocated by the RIRs: 46782 Number of 32-bit ASNs visible in the Routing Table: 38428 Prefixes from 32-bit ASNs in the Routing Table: 205204 Number of bogon 32-bit ASNs visible in the Routing Table: 94 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 445 Number of addresses announced to Internet: 3105571328 Equivalent to 185 /8s, 27 /16s and 66 /24s Percentage of available address space announced: 83.9 Percentage of allocated address space announced: 83.9 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.6 Total number of prefixes smaller than registry allocations: 321767 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 260798 Total APNIC prefixes after maximum aggregation: 77392 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 251712 Unique aggregates announced from the APNIC address blocks: 104589 APNIC Region origin ASes present in the Internet Routing Table: 14632 APNIC Prefixes per ASN: 17.20 APNIC Region origin ASes announcing only one prefix: 4447 APNIC Region transit ASes present in the Internet Routing Table: 1966 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 40 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10180 Number of APNIC addresses announced to Internet: 748824576 Equivalent to 44 /8s, 162 /16s and 40 /24s APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 63488-64098, 64297-64395, 131072-155961 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8, 163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 289169 Total ARIN prefixes after maximum aggregation: 131545 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 290554 Unique aggregates announced from the ARIN address blocks: 140570 ARIN Region origin ASes present in the Internet Routing Table: 19193 ARIN Prefixes per ASN: 15.14 ARIN Region origin ASes announcing only one prefix: 7030 ARIN Region transit ASes present in the Internet Routing Table: 1920 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 24 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5231 Number of ARIN addresses announced to Internet: 1349064448 Equivalent to 80 /8s, 105 /16s and 23 /24s ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959, 46080-47103 53248-55295, 62464-63487, 64198-64296, 393216-402332 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8, 54/8, 55/8, 56/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 275455 Total RIPE prefixes after maximum aggregation: 135646 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 274379 Unique aggregates announced from the RIPE address blocks: 176969 RIPE Region origin ASes present in the Internet Routing Table: 28907 RIPE Prefixes per ASN: 9.49 RIPE Region origin ASes announcing only one prefix: 12035 RIPE Region transit ASes present in the Internet Routing Table: 3999 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 73 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12509 Number of RIPE addresses announced to Internet: 731166464 Equivalent to 43 /8s, 148 /16s and 183 /24s RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055, 47104-52223, 56320-58367 59392-61439, 61952-62463, 64396-64495 196608-216475 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 53/8, 57/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 124017 Total LACNIC prefixes after maximum aggregation: 29773 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 120463 Unique aggregates announced from the LACNIC address blocks: 49048 LACNIC Region origin ASes present in the Internet Routing Table: 11270 LACNIC Prefixes per ASN: 10.69 LACNIC Region origin ASes announcing only one prefix: 2668 LACNIC Region transit ASes present in the Internet Routing Table: 2524 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 71 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9227 Number of LACNIC addresses announced to Internet: 171188480 Equivalent to 10 /8s, 52 /16s and 33 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 191/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 35336 Total AfriNIC prefixes after maximum aggregation: 6682 AfriNIC Deaggregation factor: 5.29 Prefixes being announced from the AfriNIC address blocks: 48379 Unique aggregates announced from the AfriNIC address blocks: 14077 AfriNIC Region origin ASes present in the Internet Routing Table: 1917 AfriNIC Prefixes per ASN: 25.24 AfriNIC Region origin ASes announcing only one prefix: 687 AfriNIC Region transit ASes present in the Internet Routing Table: 376 Average AfriNIC Region AS path length visible: 5.4 Max AfriNIC Region AS path length visible: 79 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1281 Number of AfriNIC addresses announced to Internet: 105077248 Equivalent to 6 /8s, 67 /16s and 90 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 9808 11563 8759 114 CHINAMOBILE-CN China Mobile Communication 7545 6146 840 622 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4440 535 313 BBIL-AP BHARTI Airtel Ltd., IN 18403 4376 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 3921 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3697 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3287 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2899 862 526 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2429 812 179 CMNET-JIANGSU-AP China Mobile communicati 4755 2183 434 193 TATACOMM-AS TATA Communications formerly Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13549 40946 5214 AMAZON-02, US 11492 4781 317 604 CABLEONE, US 7155 3857 286 85 VIASAT-SP-BACKBONE, US 6327 3637 1320 82 SHAW, CA 174 3511 8767 859 COGENT-174, US 22773 3340 3032 167 ASN-CXA-ALL-CCI-22773-RDC, US 749 3226 54767 2477 DNIC-AS-00749, US 396982 3193 3854 430 GOOGLE-CLOUD-PLATFORM, US 16625 2958 1242 2206 AKAMAI-AS, US 4155 2836 215 1724 USDA-1, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7654 1713 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3938 3395 123 AKAMAI-ASN1, NL 9009 3773 350 2104 M247, RO 12389 3118 2305 882 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2402 361 582 TELLCOM-AS, TR 212238 2357 169 1725 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1552 1852 14 TE-AS TE-AS, EG 8551 1433 366 39 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12273 3259 575 UNINET, MX 10620 3508 481 1019 Telmex Colombia S.A., CO 13999 2538 538 356 Mega Cable, S.A. de C.V., MX 11830 1986 369 64 Instituto Costarricense de Electricidad y 28573 1368 2435 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1344 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1195 371 22 Telefonica del Peru S.A.A., PE 22884 1061 67 370 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 11664 1046 278 33 Techtel LMDS Comunicaciones Interactivas 26615 1021 2487 55 TIM SA, BR Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1819 660 28 RAYA-AS, EG 24863 1621 389 17 LINKdotNET-AS, EG 29571 1607 102 33 ORANGE-COTE-IVOIRE, CI 36992 1431 1519 280 ETISALAT-MISR, EG 36903 1248 553 97 MT-MPLS, MA 37069 1108 1100 18 MOBINIL, EG 36935 1061 520 44 Vodafone-, EG 36914 573 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 15399 534 56 53 WANANCHI-, KE Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13549 40946 5214 AMAZON-02, US 8151 12273 3259 575 UNINET, MX 9808 11563 8759 114 CHINAMOBILE-CN China Mobile Communication 12479 7654 1713 148 UNI2-AS, ES 7545 6146 840 622 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4781 317 604 CABLEONE, US 9498 4440 535 313 BBIL-AP BHARTI Airtel Ltd., IN 18403 4376 347 26 FPT-AS-AP FPT Telecom Company, VN 20940 3938 3395 123 AKAMAI-ASN1, NL Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 8151 12273 11698 UNINET, MX 9808 11563 11449 CHINAMOBILE-CN China Mobile Communications Grou 12479 7654 7506 UNI2-AS, ES 7545 6146 5524 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4376 4350 FPT-AS-AP FPT Telecom Company, VN 11492 4781 4177 CABLEONE, US 9498 4440 4127 BBIL-AP BHARTI Airtel Ltd., IN 7552 3921 3894 VIETEL-AS-AP Viettel Group, VN 20940 3938 3815 AKAMAI-ASN1, NL Complete listing at https://bgp.nsrc.org/REN/Singapore/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 14.192.20.0/22 Origin: 26658 HENGTONG-IDC-LLC, US 14.192.20.0/22 Transit: 6939 HURRICANE, US 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE Complete listing at https://bgp.nsrc.org/REN/Singapore/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:16 /9:14 /10:41 /11:92 /12:298 /13:582 /14:1200 /15:2128 /16:13747 /17:8167 /18:13416 /19:24399 /20:43851 /21:51573 /22:111710 /23:102364 /24:612334 /25:0 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6577 7654 UNI2-AS, ES 8151 6482 12273 UNINET, MX 11492 3577 4781 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3433 3637 SHAW, CA 7155 2816 3857 VIASAT-SP-BACKBONE, US 22773 2491 3340 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2327 13549 AMAZON-02, US 30036 2263 2604 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2195 3508 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2396 2:1506 3:825 4:10 5:4747 6:162 7:6 8:1572 9:1 11:172 12:1344 13:448 14:2551 15:364 16:285 17:381 18:892 20:555 21:4 22:188 23:7654 24:2671 25:2 27:2775 29:19 31:3307 32:35 33:1 34:83 35:255 36:3281 37:4560 38:9401 39:907 40:232 41:4291 42:1884 43:2699 44:371 45:18706 46:5098 47:326 49:1885 50:1885 51:591 52:1554 54:321 55:1097 56:11 57:269 58:2210 59:1272 60:1173 61:2825 62:2921 63:1791 64:5506 65:2169 66:4668 67:3077 68:1086 69:3854 70:1050 71:617 72:2851 74:2772 75:1504 76:607 77:2779 78:1888 79:1733 80:2199 81:2072 82:3173 83:1450 84:1869 85:3459 86:1081 87:2136 88:1310 89:4394 90:776 91:8388 92:2746 93:2936 94:4036 95:4378 96:1444 97:310 98:959 99:692 100:72 101:1420 102:3893 103:32831 104:5220 105:760 106:977 107:2638 108:1252 109:4140 110:2248 111:3255 112:2181 113:1849 114:1961 115:2184 116:2077 117:2553 118:2973 119:1920 120:2099 121:1320 122:2785 123:2211 124:1659 125:2904 126:91 128:1574 129:954 130:1280 131:2029 132:763 133:451 134:1564 135:349 136:1383 137:1122 138:2801 139:1588 140:1625 141:1504 142:1896 143:1958 144:1177 145:555 146:2166 147:2101 148:2708 149:2931 150:1280 151:2187 152:2081 153:524 154:7740 155:1775 156:3185 157:1936 158:1339 159:2503 160:3612 161:1853 162:3857 163:2215 164:1862 165:2047 166:1507 167:2003 168:3953 169:774 170:5116 171:1005 172:4427 173:3357 174:918 175:1321 176:3709 177:4720 178:3907 179:2314 180:2726 181:4097 182:3488 183:2223 184:2068 185:21617 186:5188 187:4623 188:4269 189:4334 190:9571 191:1460 192:11284 193:9475 194:7768 195:5561 196:3305 197:3262 198:6049 199:8552 200:8065 201:6387 202:10361 203:10629 204:4565 205:3604 206:4422 207:3508 208:4252 209:5094 210:4557 211:2553 212:4578 213:3800 214:1013 215:46 216:6753 217:3192 218:1359 219:396 220:2143 221:1151 222:713 223:2553 End of report